/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author sflesca
 */
public class ContatoreAccessi extends HttpServlet {
    
    protected int contatore;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        int contpers=0;
        Cookie[] cookies = request.getCookies();
        if(cookies!=null){
            for(Cookie c: cookies)
                if(c.getName().equals("contpers"))
                    contpers = Integer.parseInt(c.getValue());
                    contpers++;
        }
        response.addCookie(new Cookie("contpers",""+contpers));
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /*
             * TODO output your page here. You may use following sample code.
             */
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet ContatoreAccessi</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet ContatoreAccessi</h1>");
            out.println("accesso numero:"+(++contatore));
            out.println("tuo accesso numero:"+(contpers));
            out.println("</body>");
            out.println("</html>");
        } finally {            
            out.close();
        }
    }

    @Override
    public void init() throws ServletException {
        super.init();
        ServletConfig config = getServletConfig();
	String contString = config.getInitParameter("inizio");
        if(contString!=null)
            contatore = Integer.parseInt(contString);
        else
            contatore = 0;

    }
    
    

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
